Suction cup armrest



FIG. 1 is a front, top perspective view of a suction cup armrest, showing my new design;

FIG. 2 is a rear, bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The dashed broken lines in the figures are for the purposes of illustrating portions of the suction cup armrest that form no part of the claimed design. 

CLAIM The ornamental design for a suction cup armrest, as shown and described. 